X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fopenbox;a=blobdiff_plain;f=openbox%2Fplace.c;h=7d5c869439863e7cd594b02aa94e72c074af8668;hp=9e38bdefb0b7400bf01a7f145e785f75d9563226;hb=HEAD;hpb=5563e251c36a1fbda703cf4bc3c8c6ae543829bd

diff --git a/openbox/place.c b/openbox/place.c
index 9e38bdef..7d5c8694 100644
--- a/openbox/place.c
+++ b/openbox/place.c
@@ -25,418 +25,342 @@
 #include "config.h"
 #include "dock.h"
 #include "debug.h"
+#include "place_overlap.h"
 
-extern ObDock *dock;
-
-static void add_choice(guint *choice, guint mychoice)
+static Rect *choose_pointer_monitor(ObClient *c)
 {
-    guint i;
-    for (i = 0; i < screen_num_monitors; ++i) {
-        if (choice[i] == mychoice)
-            return;
-        else if (choice[i] == screen_num_monitors) {
-            choice[i] = mychoice;
-            return;
-        }
-    }
+    return screen_area(c->desktop, screen_monitor_pointer(), NULL);
 }
 
-static Rect *pick_pointer_head(ObClient *c)
-{
-    guint i;
-    gint px, py;
-
-    if (screen_pointer_pos(&px, &py)) {
-        for (i = 0; i < screen_num_monitors; ++i) {
-            Rect *monitor = screen_physical_area_monitor(i);
-            gboolean contain = RECT_CONTAINS(*monitor, px, py);
-            g_free(monitor);
-            if (contain)
-                return screen_area(c->desktop, i, NULL);
-        }
-        g_assert_not_reached();
-    } else
-        return NULL;
-}
-
-/*! Pick a monitor to place a window on. */
-static Rect **pick_head(ObClient *c)
-{
-    Rect **area;
-    guint *choice;
-    guint i;
-    gint px, py;
-    ObClient *p;
-
-    area = g_new(Rect*, screen_num_monitors);
-    choice = g_new(guint, screen_num_monitors);
-    for (i = 0; i < screen_num_monitors; ++i)
-        choice[i] = screen_num_monitors; /* make them all invalid to start */
+/* use the following priority lists for choose_monitor()
+
+   When a window is being placed in the FOREGROUND, use a monitor chosen in
+   the following order:
+   1. per-app settings
+   2. same monitor as parent
+   3. primary monitor if placement=PRIMARY
+      active monitor if placement=ACTIVE
+      pointer monitor if placement=MOUSE
+   4. primary monitor
+   5. other monitors where the window has group members on the same desktop
+   6. other monitors where the window has group members on other desktops
+   7. other monitors
+
+   When a window is being placed in the BACKGROUND, use a monitor chosen in the
+   following order:
+   1. per-app settings
+   2. same monitor as parent
+   3. other monitors where the window has group members on the same desktop
+    3a. primary monitor in this set
+    3b. other monitors in this set
+   4. other monitors where the window has group members on other desktops
+    4a. primary monitor in this set
+    4b. other monitors in this set
+   5. other monitors
+    5a. primary monitor in this set
+    5b. other monitors in this set
+*/
 
-    /* try direct parent first */
-    if ((p = client_direct_parent(c))) {
-        add_choice(choice, client_monitor(p));
-        ob_debug("placement adding choice %d for parent",
-                 client_monitor(p));
-    }
+/*! One for each possible head, used to sort them in order of precedence. */
+typedef struct {
+    guint monitor;
+    guint flags;
+} ObPlaceHead;
 
-    /* more than one window in its group (more than just this window) */
-    if (client_has_group_siblings(c)) {
-        GSList *it;
+/*! Flags for ObPlaceHead */
+enum {
+    HEAD_PARENT = 1 << 0, /* parent's monitor */
+    HEAD_PLACED = 1 << 1, /* chosen monitor by placement */
+    HEAD_PRIMARY = 1 << 2, /* primary monitor */
+    HEAD_GROUP_DESK = 1 << 3, /* has a group member on the same desktop */
+    HEAD_GROUP = 1 << 4, /* has a group member on another desktop */
+    HEAD_PERAPP = 1 << 5, /* chosen by per-app settings */
+};
 
-        /* try on the client's desktop */
-        for (it = c->group->members; it; it = g_slist_next(it)) {
-            ObClient *itc = it->data;
-            if (itc != c &&
-                (itc->desktop == c->desktop ||
-                 itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
-            {
-                add_choice(choice, client_monitor(it->data));
-                ob_debug("placement adding choice %d for group sibling",
-                         client_monitor(it->data));
-            }
-        }
+gint cmp_foreground(const void *a, const void *b)
+{
+    const ObPlaceHead *h1 = a;
+    const ObPlaceHead *h2 = b;
+    gint i = 0;
 
-        /* try on all desktops */
-        for (it = c->group->members; it; it = g_slist_next(it)) {
-            ObClient *itc = it->data;
-            if (itc != c) {
-                add_choice(choice, client_monitor(it->data));
-                ob_debug("placement adding choice %d for group sibling on "
-                         "another desktop", client_monitor(it->data));
-            }
-        }
-    }
+    if (h1->monitor == h2->monitor) return 0;
 
-    /* skip this if placing by the mouse position */
-    if (focus_client && client_normal(focus_client) &&
-        config_place_monitor != OB_PLACE_MONITOR_MOUSE)
-    {
-        add_choice(choice, client_monitor(focus_client));
-        ob_debug("placement adding choice %d for normal focused window",
-                 client_monitor(focus_client));
-    }
+    if (h1->flags & HEAD_PERAPP) --i;
+    if (h2->flags & HEAD_PERAPP) ++i;
+    if (i) return i;
 
-    screen_pointer_pos(&px, &py);
+    if (h1->flags & HEAD_PARENT) --i;
+    if (h2->flags & HEAD_PARENT) ++i;
+    if (i) return i;
 
-    for (i = 0; i < screen_num_monitors; i++) {
-        Rect *monitor = screen_physical_area_monitor(i);
-        gboolean contain = RECT_CONTAINS(*monitor, px, py);
-        g_free(monitor);
-        if (contain) {
-            add_choice(choice, i);
-            ob_debug("placement adding choice %d for mouse pointer", i);
-            break;
-        }
-    }
+    if (h1->flags & HEAD_PLACED) --i;
+    if (h2->flags & HEAD_PLACED) ++i;
+    if (i) return i;
 
-    /* add any leftover choices */
-    for (i = 0; i < screen_num_monitors; ++i)
-        add_choice(choice, i);
+    if (h1->flags & HEAD_PRIMARY) --i;
+    if (h2->flags & HEAD_PRIMARY) ++i;
+    if (i) return i;
 
-    for (i = 0; i < screen_num_monitors; ++i)
-        area[i] = screen_area(c->desktop, choice[i], NULL);
+    if (h1->flags & HEAD_GROUP_DESK) --i;
+    if (h2->flags & HEAD_GROUP_DESK) ++i;
+    if (i) return i;
 
-    g_free(choice);
+    if (h1->flags & HEAD_GROUP) --i;
+    if (h2->flags & HEAD_GROUP) ++i;
+    if (i) return i;
 
-    return area;
+    return h1->monitor - h2->monitor;
 }
 
-static gboolean place_random(ObClient *client, gint *x, gint *y)
+gint cmp_background(const void *a, const void *b)
 {
-    gint l, r, t, b;
-    Rect **areas;
-    guint i;
-
-    areas = pick_head(client);
-    i = (config_place_monitor != OB_PLACE_MONITOR_ANY) ?
-        0 : g_random_int_range(0, screen_num_monitors);
+    const ObPlaceHead *h1 = a;
+    const ObPlaceHead *h2 = b;
+    gint i = 0;
+
+    if (h1->monitor == h2->monitor) return 0;
+
+    if (h1->flags & HEAD_PERAPP) --i;
+    if (h2->flags & HEAD_PERAPP) ++i;
+    if (i) return i;
+
+    if (h1->flags & HEAD_PARENT) --i;
+    if (h2->flags & HEAD_PARENT) ++i;
+    if (i) return i;
+
+    if (h1->flags & HEAD_GROUP_DESK || h2->flags & HEAD_GROUP_DESK) {
+        if (h1->flags & HEAD_GROUP_DESK) --i;
+        if (h2->flags & HEAD_GROUP_DESK) ++i;
+        if (i) return i;
+        if (h1->flags & HEAD_PRIMARY) --i;
+        if (h2->flags & HEAD_PRIMARY) ++i;
+        if (i) return i;
+    }
 
-    l = areas[i]->x;
-    t = areas[i]->y;
-    r = areas[i]->x + areas[i]->width - client->frame->area.width;
-    b = areas[i]->y + areas[i]->height - client->frame->area.height;
+    if (h1->flags & HEAD_GROUP || h2->flags & HEAD_GROUP) {
+        if (h1->flags & HEAD_GROUP) --i;
+        if (h2->flags & HEAD_GROUP) ++i;
+        if (i) return i;
+        if (h1->flags & HEAD_PRIMARY) --i;
+        if (h2->flags & HEAD_PRIMARY) ++i;
+        if (i) return i;
+    }
 
-    if (r > l) *x = g_random_int_range(l, r + 1);
-    else       *x = areas[i]->x;
-    if (b > t) *y = g_random_int_range(t, b + 1);
-    else       *y = areas[i]->y;
+    if (h1->flags & HEAD_PRIMARY) --i;
+    if (h2->flags & HEAD_PRIMARY) ++i;
+    if (i) return i;
 
-    for (i = 0; i < screen_num_monitors; ++i)
-        g_free(areas[i]);
-    g_free(areas);
-
-    return TRUE;
+    return h1->monitor - h2->monitor;
 }
 
-static GSList* area_add(GSList *list, Rect *a)
-{
-    Rect *r = g_new(Rect, 1);
-    *r = *a;
-    return g_slist_prepend(list, r);
-}
-
-static GSList* area_remove(GSList *list, Rect *a)
+/*! Pick a monitor to place a window on. */
+static Rect* choose_monitor(ObClient *c, gboolean client_to_be_foregrounded,
+                            ObAppSettings *settings)
 {
-    GSList *sit;
-    GSList *result = NULL;
-
-    for (sit = list; sit; sit = g_slist_next(sit)) {
-        Rect *r = sit->data;
-
-        if (!RECT_INTERSECTS_RECT(*r, *a)) {
-            result = g_slist_prepend(result, r);
-            /* dont free r, it's moved to the result list */
-        } else {
-            Rect isect, extra;
-
-            /* Use an intersection of a and r to determine the space
-               around r that we can use.
-
-               NOTE: the spaces calculated can overlap.
-            */
-
-            RECT_SET_INTERSECTION(isect, *r, *a);
-
-            if (RECT_LEFT(isect) > RECT_LEFT(*r)) {
-                RECT_SET(extra, r->x, r->y,
-                         RECT_LEFT(isect) - r->x, r->height);
-                result = area_add(result, &extra);
-            }
+    Rect *area;
+    ObPlaceHead *choice;
+    guint i;
+    ObClient *p;
+    GSList *it;
 
-            if (RECT_TOP(isect) > RECT_TOP(*r)) {
-                RECT_SET(extra, r->x, r->y,
-                         r->width, RECT_TOP(isect) - r->y + 1);
-                result = area_add(result, &extra);
-            }
+    choice = g_new(ObPlaceHead, screen_num_monitors);
+    for (i = 0; i < screen_num_monitors; ++i) {
+        choice[i].monitor = i;
+        choice[i].flags = 0;
+    }
 
-            if (RECT_RIGHT(isect) < RECT_RIGHT(*r)) {
-                RECT_SET(extra, RECT_RIGHT(isect) + 1, r->y,
-                         RECT_RIGHT(*r) - RECT_RIGHT(isect), r->height);
-                result = area_add(result, &extra);
-            }
+    /* find monitors with group members */
+    if (c->group) {
+        for (it = c->group->members; it; it = g_slist_next(it)) {
+            ObClient *itc = it->data;
+            if (itc != c) {
+                guint m = client_monitor(itc);
 
-            if (RECT_BOTTOM(isect) < RECT_BOTTOM(*r)) {
-                RECT_SET(extra, r->x, RECT_BOTTOM(isect) + 1,
-                         r->width, RECT_BOTTOM(*r) - RECT_BOTTOM(isect));
-                result = area_add(result, &extra);
+                if (m < screen_num_monitors) {
+                    if (screen_compare_desktops(itc->desktop, c->desktop))
+                        choice[m].flags |= HEAD_GROUP_DESK;
+                    else
+                        choice[m].flags |= HEAD_GROUP;
+                }
             }
-
-            /* 'r' is not being added to the result list, so free it */
-            g_free(r);
         }
     }
-    g_slist_free(list);
-    return result;
-}
 
-enum {
-    IGNORE_FULLSCREEN = 1,
-    IGNORE_MAXIMIZED  = 2,
-    IGNORE_MENUTOOL   = 3,
-    /*IGNORE_SHADED     = 3,*/
-    IGNORE_NONGROUP   = 4,
-    IGNORE_BELOW      = 5,
-    /*IGNORE_NONFOCUS   = 1 << 5,*/
-    IGNORE_DOCK       = 6,
-    IGNORE_END        = 7
-};
+    i = screen_monitor_primary(FALSE);
+    if (i < screen_num_monitors) {
+        choice[i].flags |= HEAD_PRIMARY;
+        if (config_place_monitor == OB_PLACE_MONITOR_PRIMARY)
+            choice[i].flags |= HEAD_PLACED;
+        if (settings &&
+            settings->monitor_type == OB_PLACE_MONITOR_PRIMARY)
+            choice[i].flags |= HEAD_PERAPP;
+    }
 
-static gboolean place_nooverlap(ObClient *c, gint *x, gint *y)
-{
-    Rect **areas;
-    gint ignore;
-    gboolean ret;
-    gint maxsize;
-    GSList *spaces = NULL, *sit, *maxit;
-    guint i;
+    i = screen_monitor_active();
+    if (i < screen_num_monitors) {
+        if (config_place_monitor == OB_PLACE_MONITOR_ACTIVE)
+            choice[i].flags |= HEAD_PLACED;
+        if (settings &&
+            settings->monitor_type == OB_PLACE_MONITOR_ACTIVE)
+            choice[i].flags |= HEAD_PERAPP;
+    }
 
-    areas = pick_head(c);
-    ret = FALSE;
-    maxsize = 0;
-    maxit = NULL;
-
-    /* try ignoring different things to find empty space */
-    for (ignore = 0; ignore < IGNORE_END && !ret; ignore++) {
-        /* try all monitors in order of preference, but only the first one
-           if config_place_monitor is MOUSE or ACTIVE */
-        for (i = 0; (i < (config_place_monitor != OB_PLACE_MONITOR_ANY ?
-                          1 : screen_num_monitors) && !ret); ++i)
-        {
-            GList *it;
-
-            /* add the whole monitor */
-            spaces = area_add(spaces, areas[i]);
-
-            /* go thru all the windows */
-            for (it = client_list; it; it = g_list_next(it)) {
-                ObClient *test = it->data;
-
-                /* should we ignore this client? */
-                if (screen_showing_desktop) continue;
-                if (c == test) continue;
-                if (test->iconic) continue;
-                if (c->desktop != DESKTOP_ALL) {
-                    if (test->desktop != c->desktop &&
-                        test->desktop != DESKTOP_ALL) continue;
-                } else {
-                    if (test->desktop != screen_desktop &&
-                        test->desktop != DESKTOP_ALL) continue;
-                }
-                if (test->type == OB_CLIENT_TYPE_SPLASH ||
-                    test->type == OB_CLIENT_TYPE_DESKTOP) continue;
-
-
-                if ((ignore >= IGNORE_FULLSCREEN) &&
-                    test->fullscreen) continue;
-                if ((ignore >= IGNORE_MAXIMIZED) &&
-                    test->max_horz && test->max_vert) continue;
-                if ((ignore >= IGNORE_MENUTOOL) &&
-                    (test->type == OB_CLIENT_TYPE_MENU ||
-                     test->type == OB_CLIENT_TYPE_TOOLBAR) &&
-                    client_has_parent(c)) continue;
-                /*
-                if ((ignore >= IGNORE_SHADED) &&
-                    test->shaded) continue;
-                */
-                if ((ignore >= IGNORE_NONGROUP) &&
-                    client_has_group_siblings(c) &&
-                    test->group != c->group) continue;
-                if ((ignore >= IGNORE_BELOW) &&
-                    test->layer < c->layer) continue;
-                /*
-                if ((ignore >= IGNORE_NONFOCUS) &&
-                    focus_client != test) continue;
-                */
-                /* don't ignore this window, so remove it from the available
-                   area */
-                spaces = area_remove(spaces, &test->frame->area);
-            }
+    i = screen_monitor_pointer();
+    if (i < screen_num_monitors) {
+        if (config_place_monitor == OB_PLACE_MONITOR_MOUSE)
+            choice[i].flags |= HEAD_PLACED;
+        if (settings &&
+            settings->monitor_type == OB_PLACE_MONITOR_MOUSE)
+            choice[i].flags |= HEAD_PERAPP;
+    }
 
-            if (ignore < IGNORE_DOCK) {
-                Rect a;
-                dock_get_area(&a);
-                spaces = area_remove(spaces, &a);
-            }
+    if (settings) {
+        i = settings->monitor - 1;
+        if (i < screen_num_monitors)
+            choice[i].flags |= HEAD_PERAPP;
+    }
 
-            for (sit = spaces; sit; sit = g_slist_next(sit)) {
-                Rect *r = sit->data;
+    /* direct parent takes highest precedence */
+    if ((p = client_direct_parent(c))) {
+        i = client_monitor(p);
+        if (i < screen_num_monitors)
+            choice[i].flags |= HEAD_PARENT;
+    }
 
-                if (r->width >= c->frame->area.width &&
-                    r->height >= c->frame->area.height &&
-                    r->width * r->height > maxsize)
-                {
-                    maxsize = r->width * r->height;
-                    maxit = sit;
-                }
-            }
+    qsort(choice, screen_num_monitors, sizeof(ObPlaceHead),
+          client_to_be_foregrounded ? cmp_foreground : cmp_background);
 
-            if (maxit) {
-                Rect *r = maxit->data;
+    /* save the areas of the monitors in order of their being chosen */
+    for (i = 0; i < screen_num_monitors; ++i)
+    {
+        ob_debug("placement choice %d is monitor %d", i, choice[i].monitor);
+        if (choice[i].flags & HEAD_PARENT)
+            ob_debug("  - parent on monitor");
+        if (choice[i].flags & HEAD_PLACED)
+            ob_debug("  - placement choice");
+        if (choice[i].flags & HEAD_PRIMARY)
+            ob_debug("  - primary monitor");
+        if (choice[i].flags & HEAD_GROUP_DESK)
+            ob_debug("  - group on same desktop");
+        if (choice[i].flags & HEAD_GROUP)
+            ob_debug("  - group on other desktop");
+    }
 
-                /* center it in the area */
-                *x = r->x;
-                *y = r->y;
-                if (config_place_center) {
-                    *x += (r->width - c->frame->area.width) / 2;
-                    *y += (r->height - c->frame->area.height) / 2;
-                }
-                ret = TRUE;
-            }
+    area = screen_area(c->desktop, choice[0].monitor, NULL);
 
-            while (spaces) {
-                g_free(spaces->data);
-                spaces = g_slist_delete_link(spaces, spaces);
-            }
-        }
-    }
+    g_free(choice);
 
-    for (i = 0; i < screen_num_monitors; ++i)
-        g_free(areas[i]);
-    g_free(areas);
-    return ret;
+    /* return the area for the chosen monitor */
+    return area;
 }
 
-static gboolean place_under_mouse(ObClient *client, gint *x, gint *y)
+static gboolean place_under_mouse(ObClient *client, gint *x, gint *y,
+                                  Size frame_size)
 {
+    if (config_place_policy != OB_PLACE_POLICY_MOUSE)
+        return FALSE;
+
     gint l, r, t, b;
     gint px, py;
     Rect *area;
 
+    ob_debug("placing under mouse");
+
     if (!screen_pointer_pos(&px, &py))
         return FALSE;
-    area = pick_pointer_head(client);
+    area = choose_pointer_monitor(client);
 
     l = area->x;
     t = area->y;
-    r = area->x + area->width - client->frame->area.width;
-    b = area->y + area->height - client->frame->area.height;
+    r = area->x + area->width - frame_size.width;
+    b = area->y + area->height - frame_size.height;
 
-    *x = px - client->area.width / 2 - client->frame->size.left;
+    *x = px - frame_size.width / 2;
     *x = MIN(MAX(*x, l), r);
-    *y = py - client->area.height / 2 - client->frame->size.top;
+    *y = py - frame_size.height / 2;
     *y = MIN(MAX(*y, t), b);
 
+    g_slice_free(Rect, area);
+
     return TRUE;
 }
 
-static gboolean place_per_app_setting(ObClient *client, gint *x, gint *y,
-                                      ObAppSettings *settings)
+static gboolean place_per_app_setting_position(ObClient *client, Rect *screen,
+                                               gint *x, gint *y,
+                                               ObAppSettings *settings,
+                                               Size frame_size)
 {
-    Rect *screen = NULL;
-
-    if (!settings || (settings && !settings->pos_given))
+    if (!settings || !settings->pos_given)
         return FALSE;
 
-    /* Find which head the pointer is on */
-    if (settings->monitor == 0)
-        /* this can return NULL */
-        screen = pick_pointer_head(client);
-    else if (settings->monitor > 0 &&
-             (guint)settings->monitor <= screen_num_monitors)
-        screen = screen_area(client->desktop, (guint)settings->monitor - 1,
-                             NULL);
-
-    /* if we have't found a screen yet.. */
-    if (!screen) {
-        Rect **areas;
-        guint i;
-
-        areas = pick_head(client);
-        screen = areas[0];
-
-        /* don't free the first one, it's being set as "screen" */
-        for (i = 1; i < screen_num_monitors; ++i)
-            g_free(areas[i]);
-        g_free(areas);
-    }
+    ob_debug("placing by per-app settings");
 
     if (settings->position.x.center)
         *x = screen->x + screen->width / 2 - client->area.width / 2;
     else if (settings->position.x.opposite)
-        *x = screen->x + screen->width - client->frame->area.width -
+        *x = screen->x + screen->width - frame_size.width -
             settings->position.x.pos;
     else
         *x = screen->x + settings->position.x.pos;
+    if (settings->position.x.denom)
+        *x = (*x * screen->width) / settings->position.x.denom;
 
     if (settings->position.y.center)
         *y = screen->y + screen->height / 2 - client->area.height / 2;
     else if (settings->position.y.opposite)
-        *y = screen->y + screen->height - client->frame->area.height -
+        *y = screen->y + screen->height - frame_size.height -
             settings->position.y.pos;
     else
         *y = screen->y + settings->position.y.pos;
+    if (settings->position.y.denom)
+        *y = (*y * screen->height) / settings->position.y.denom;
 
-    g_free(screen);
     return TRUE;
 }
 
-static gboolean place_transient_splash(ObClient *client, gint *x, gint *y)
+static void place_per_app_setting_size(ObClient *client, Rect *screen,
+                                       gint *w, gint *h,
+                                       ObAppSettings *settings)
+{
+    if (!settings)
+        return;
+
+    g_assert(settings->width_num >= 0);
+    g_assert(settings->width_denom >= 0);
+    g_assert(settings->height_num >= 0);
+    g_assert(settings->height_denom >= 0);
+
+    if (settings->width_num) {
+        ob_debug("setting width by per-app settings");
+        if (!settings->width_denom)
+            *w = settings->width_num;
+        else {
+            *w = screen->width * settings->width_num / settings->width_denom;
+            *w = MIN(*w, screen->width);
+        }
+    }
+
+    if (settings->height_num) {
+        ob_debug("setting height by per-app settings");
+        if (!settings->height_denom)
+            *h = settings->height_num;
+        else {
+            *h = screen->height * settings->height_num / settings->height_denom;
+            *h = MIN(*h, screen->height);
+        }
+    }
+}
+
+static gboolean place_transient_splash(ObClient *client, Rect *area,
+                                       gint *x, gint *y, Size frame_size)
 {
     if (client->type == OB_CLIENT_TYPE_DIALOG) {
         GSList *it;
         gboolean first = TRUE;
         gint l, r, t, b;
+
+        ob_debug("placing dialog");
+
         for (it = client->parents; it; it = g_slist_next(it)) {
             ObClient *m = it->data;
             if (!m->iconic) {
@@ -454,8 +378,8 @@ static gboolean place_transient_splash(ObClient *client, gint *x, gint *y)
                 }
             }
             if (!first) {
-                *x = ((r + 1 - l) - client->frame->area.width) / 2 + l;
-                *y = ((b + 1 - t) - client->frame->area.height) / 2 + t;
+                *x = ((r + 1 - l) - frame_size.width) / 2 + l;
+                *y = ((b + 1 - t) - frame_size.height) / 2 + t;
                 return TRUE;
             }
         }
@@ -464,47 +388,124 @@ static gboolean place_transient_splash(ObClient *client, gint *x, gint *y)
     if (client->type == OB_CLIENT_TYPE_DIALOG ||
         client->type == OB_CLIENT_TYPE_SPLASH)
     {
-        Rect **areas;
-        guint i;
-
-        areas = pick_head(client);
+        ob_debug("placing dialog or splash");
 
-        *x = (areas[0]->width - client->frame->area.width) / 2 + areas[0]->x;
-        *y = (areas[0]->height - client->frame->area.height) / 2 + areas[0]->y;
-
-        for (i = 0; i < screen_num_monitors; ++i)
-            g_free(areas[i]);
-        g_free(areas);
+        *x = (area->width - frame_size.width) / 2 + area->x;
+        *y = (area->height - frame_size.height) / 2 + area->y;
         return TRUE;
     }
 
     return FALSE;
 }
 
-/* Return TRUE if we want client.c to enforce on-screen-keeping */
-gboolean place_client(ObClient *client, gint *x, gint *y,
-                      ObAppSettings *settings)
+static gboolean place_least_overlap(ObClient *c, Rect *head, int *x, int *y,
+                                    Size frame_size)
+{
+    /* Assemble the list of windows that could overlap with @c in the user's
+       current view. */
+    GSList* potential_overlap_clients = NULL;
+    gint n_client_rects = config_dock_hide ? 0 : 1;
+
+    /* if we're "showing desktop", ignore all existing windows */
+    if (!screen_showing_desktop) {
+        GList* it;
+        for (it = client_list; it != NULL; it = g_list_next(it)) {
+            ObClient* maybe_client = (ObClient*)it->data;
+            if (maybe_client == c)
+                continue;
+            if (maybe_client->iconic)
+                continue;
+            if (!client_occupies_space(maybe_client))
+                continue;
+            if (c->desktop != DESKTOP_ALL) {
+                if (maybe_client->desktop != c->desktop &&
+                    maybe_client->desktop != DESKTOP_ALL)
+                    continue;
+            } else {
+                if (maybe_client->desktop != screen_desktop &&
+                    maybe_client->desktop != DESKTOP_ALL)
+                    continue;
+            }
+
+            potential_overlap_clients = g_slist_prepend(
+                potential_overlap_clients, maybe_client);
+            n_client_rects += 1;
+        }
+    }
+    Rect client_rects[n_client_rects];
+
+    GSList* it;
+    guint i = 0;
+    if (!config_dock_hide)
+        dock_get_area(&client_rects[i++]);
+    for (it = potential_overlap_clients; it != NULL; it = g_slist_next(it)) {
+        ObClient* potential_overlap_client = (ObClient*)it->data;
+        client_rects[i] = potential_overlap_client->frame->area;
+        i += 1;
+    }
+    g_slist_free(potential_overlap_clients);
+
+    Point result;
+    place_overlap_find_least_placement(client_rects, n_client_rects, head,
+                                       &frame_size, &result);
+    *x = result.x;
+    *y = result.y;
+
+    return TRUE;
+}
+
+static gboolean should_set_client_position(ObClient *client,
+                                           ObAppSettings *settings)
+{
+    gboolean has_position = settings && settings->pos_given;
+    gboolean has_forced_position = has_position && settings->pos_force;
+
+    gboolean user_positioned = client->positioned & USPosition;
+    if (user_positioned && !has_forced_position)
+        return FALSE;
+
+    gboolean program_positioned = client->positioned & PPosition;
+    if (program_positioned && !has_position)
+        return FALSE;
+
+    return TRUE;
+}
+
+gboolean place_client(ObClient *client, gboolean client_to_be_foregrounded,
+                      Rect* client_area, ObAppSettings *settings)
 {
     gboolean ret;
-    gboolean userplaced = FALSE;
+    Rect *monitor_area;
+    int *x, *y, *w, *h;
+    Size frame_size;
+
+    monitor_area = choose_monitor(client, client_to_be_foregrounded, settings);
+
+    w = &client_area->width;
+    h = &client_area->height;
+    place_per_app_setting_size(client, monitor_area, w, h, settings);
 
-    /* per-app settings override program specified position
-     * but not user specified */
-    if ((client->positioned & USPosition) ||
-        ((client->positioned & PPosition) &&
-         !(settings && settings->pos_given)))
+    if (!should_set_client_position(client, settings))
         return FALSE;
 
-    /* try a number of methods */
-    ret = place_transient_splash(client, x, y) ||
-        (userplaced = place_per_app_setting(client, x, y, settings)) ||
-        (config_place_policy == OB_PLACE_POLICY_MOUSE &&
-         place_under_mouse(client, x, y)) ||
-        place_nooverlap(client, x, y) ||
-        place_random(client, x, y);
+    x = &client_area->x;
+    y = &client_area->y;
+
+    SIZE_SET(frame_size,
+             *w + client->frame->size.left + client->frame->size.right,
+             *h + client->frame->size.top + client->frame->size.bottom);
+
+    ret =
+        place_per_app_setting_position(client, monitor_area, x, y, settings,
+                                       frame_size) ||
+        place_transient_splash(client, monitor_area, x, y, frame_size) ||
+        place_under_mouse(client, x, y, frame_size) ||
+        place_least_overlap(client, monitor_area, x, y, frame_size);
     g_assert(ret);
 
+    g_slice_free(Rect, monitor_area);
+
     /* get where the client should be */
     frame_frame_gravity(client->frame, x, y);
-    return !userplaced;
+    return TRUE;
 }